In the world of computers and just devices in general, the lifespan, or the shelf life, is relatively short just because technology moves so fast and the costs drop so quickly and the power, whether it's computing power or memory rises very, very quickly.

Even in the developing parts of the world, kids take to computers like fish to water.

Taxes will eventually become a voluntary process, with the possible exception of real estate - the one physical thing that does not move easily and has computable value. The US has a jump-start on the practice, in that 65 percent of local school funds come from real estate taxes - a practice Europeans consider odd and ill advised. But wait until that's all there is left to tax, when the rest of the things we buy and sell come from everywhere, anywhere, and nowhere.

Machines need to talk easily to one another in order to better serve people.

Every child in Uruguay has a little green laptop.

Learning by doing, peer-to-peer teaching, and computer simulation are all part of the same equation.

Young people, I happen to believe, are the world's most precious natural resource.